1. XFEL Simulations with SIMPLEX and GENESIS (Some preliminary results)
Vitali Khachatryan
CANDLE – DESY/MPY
XFEL Simulations with SIMPLEX and GENESIS
(Some preliminary results)
OUTLINE
1. Simulation software.
2. Test with sample input files.
3. Beam parameters.
4. Focusing lattice.
5. Some results of XFEL study with SIMPLEX and GENESIS
6.Questions

2. SIMULATION SOFTWARE GENESIS (2001) SIMPLEX (2005)

3. TEST WITH SAMPLE INPUT FILES

5. SASE1 undulator line description (S2E meeting, March 10, 2004)

6. Beta function in the SASE1 undulator

7. Beam parameters
Bunch parameters at the entrance of the undulator system SASE1

8. POWER PLOTS (SASE1)

9. BEAM OFFSET AT THE ENTRANCE OF THE UNDULATOR
(SASE1)
Peak Power [GW]
GENESIS
SIMPLEX
No offsets
21.17
17.4
0.1 Sigma offsets
20.67
16.3
1.0 Sigma offsets
0.0173
0.004

10. QUESTIONS
If given arrangement of undulator system is adequate, is 8 cm space enough for vertical corrector?
What is the most appropriate criterion to define FEL performance (brilliance, saturation length, # of photons)?